Self-filling fountain-pen.



H. LEWINSON. SELF FILLING FOUNTAIN PEN.

APPLICATION FILED FEB. 28, 1910.

Patgnted July 19, 1910.

INVENTOR @liialzlawmaozz WITNESSES HYMAN LEWINSON, OF PITTSBURG, YENNSYLVANIA.

SELF-FILLING FOUNTAIN-PEN.

Specification of Letters Patent.

Patented July 19, 1910,

Application filed February 28, 1910. Serial No.'546,315.

To all whom it may concern:

Be it known that I, HYMAN LEWINSON, a citizen of the United States of America, residing at N. S. Pittsburg, in the county of Allegheny and State of'lcnnsylvania, have-invented certain new and useful lmprovements in Self-Filling l ountain-lcns, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to self filling fountain pens and the object thereof is to provide a fountain pen of such class in the manner as hereinafter set forth whereby the pen can be easily, quickly, fully and securely filled and also easily cleaned, when occasion so requires.

Further objects of the invention are to provide a fountain pen of such class, which shall be simple in its construction. strong. durable, conveniently used and quickly filled when occasion so requires, and inexpensive to immufacture.

\Vith the foregoing and other objects in View, the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown the preferred embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to, which come within the scope of the claim hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views: Figure 1 is a longitudinal sectional view of a fountain pen in accordance with this invention, the pen being shown in the closed position and with the guard for the pen point inclosing the latter, Fig. 2 is a longitudinal sectional View with the pen in an extended ositio n, such as it assmnes when being filled Fig. 3 is a view similar to Fig. 1 of a modified form, and Fig. 4 is a view .of the construction shown in Fig. 3, the pen being extended for filling.

Referring to Figs. 1 and 2 of the drawings, 1 denotes a tubular casing provided near one end with an interiorly-arranged annular flange 2, whichconstitutes a guide. The casing 1 has the inner face thereof at each end provided with interior threads 3, 4: respectively. Engaging with the threads 3 is a. hollow plug 5 and engaging with the threads 1. is a gland 6 which is flanged, as at 7 and abuts against that end of the casing 1, which is provided with the threads 4:. A packing 8 is interposed between the flange 2 and the inner end of the gland 6.

The reference character 9'denotes a shiftable inner tube, which forms a reservoir and which snugly engages the flange 2 and the gland (3, but the engagement is such as to allow of the tube 9 being shifted into or withdrawn from the casing 1. The tube-9 at one end is, provided with an integral solid or closed head 10 of a diameter as to snugly engage the inner face of the casing 1 and which constitutes a guide during the shifting of the tube 9.. The head 10 is formed with a longitudinally -extending protube mice 11, which is adapted to project through the opening 12 of the plug 5, when the tube. 9 is shifted inwardly. The head 1.0 has secured to one side thereof by the. holdfastdevices 13 a washer 14 which. abuts against. the inneffaee of the plug 5 whereby the inward moyement of the tube 9 is arrested. The other face of the head 10 is adapted to engage the flange 2 whereby the outward movement of the tube 9 will be arrested. The head 10 not only forms a guide during the shifting movement of the tube 9, but further in connection withthe- I plug 5 and flange 2 forms a stop for limiting the movement of the tube 9 in either direction. Mounted in the outer endof the tube 9 is afeed member 15 provided with a duct 16 and which also carries the pen point 17. That end of the tube 9 in which extends the member 15 constitutes a means for retaining the pen point in position.

The reference character 18 denotes a guard which incloses the pen point when the pen is in the position as shown in Fig.- 1, the guard 18 frictionally engaging the outer end of the tube '9.

In Fig. 2 an ink well is illustrated and indicated by the reference character 19 and which contains a body of ink, as at 20. The tube 9 is shown withdrawn and the'member 15 extending into the ink 20. By moving the casing 1' downwardly the ink will be sucked in through the duct 16 and into the tube 9, the suction continuing until the up ward movement of the head 10 is arrested by the plug 5.

Referring'to Figs. 3 and 4 of the drawings, 21 denotes a tubular casing having one end thereof formed with-interim. threads 22 and its other end with interior threads 23. The casing 21 in proximity to the threads 23 is formed with an interiorly-arranged annular flange 24. One end of the casing 21 is inclosed by a plug 25, which engages with the threads 22 and is formed with an opening 26. Arranged within the casing 21 and engaging with the threads 23 is a hollow plug 27. The flange 24 and plug 27 constitute'a guide for a shiftable inner tube 28,

'which will presently be described. Interposed between the plug 27 and the flange 24 is a packing 29. The lug 27 is positioned at a point removed rom the edge of that end of the tube provided with the threads 23. The inner tube 28 has its inner end formed with a solid or closed head 30 of a diameter to engage the inner face of the casing 21, but not to prevent the sliding movement of the tube 28. The head 30 is provided with packing disks 31 secured in position by the hold-fast devices 32. The plug 27 constitutes a means for limiting the inward movement of the tube 28, while the flange 24 provides an abutment to, limit the outward movement of the tube 28. The tube 28 projects 'from the" casing 21 and has secured in its projecting end a feed member 33 formed with a duct 34 and which also carries the pen point 35. The tube 28 also carries a cap 30, which in closes the outer end of the tube 28 and a; portion of the pen point 35 and is of such diameter that when the pen is closed, as shown in Fig. 3, the cap 36 will abut against the plug 27, which is arranged within the casing 21. When the construction shown in Figs. 3 and 4 is desired to be filled, the tube 28 is withdrawn from the casing 21 in a manner as shown in Fig. 4, the member 33 placed in the ink and the casing 21 moved downwardly whereby the ervoir and extending into said casing.

through said flange, said tube projecting from one end of said casing. a head formed integral with the inner end of said inner tube and of a diameter greater than said tube and engaging the inner'face of said casing, a feed member'secured in the outer end of said tube carrying a pen point and provided with a duct for establishing communication between the source of supply and the inner tube when filling the latter and further constituting a feed duct for the pen point, said inner tube in proximity to said head provided with an air vent, a hollow plug secured in that end of the casing opposite to that end from'which the inner tube projects, said plug in connection with said head constituting a means for limiting the inward movement of the tube and said flange in connection with said head constituting a means for limiting the movement of the tube, and a packing carried by the head.

In testimony whereof I attix my signature in the presence of two witnesses.

,HYMAN LEWINSON.

Witnesses:

KARL H. BUTLER, EVA A. MILNE. 

